2021 head-to-head · Subcompact Car
2021 BMW 4 Series vs Mercedes-Benz E-Class Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2021 BMW 4 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,279 for the 2021 Mercedes-Benz E-Class Hybrid (26 MPG). That's roughly $236 a year, or about $1,179 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW 4 Series
- Mercedes-Benz E-Class Hybrid
Side by side
| BMW 4 Series | Mercedes-Benz E-Class Hybrid | |
|---|---|---|
| $2,043 | Your annual fuel cost | $2,279 |
| 29 MPG | Combined efficiency | 26 MPG |
| 26 MPG | City | 23 MPG |
| 34 MPG | Highway | 30 MPG |
| 86 cu ft | Passenger volume | 98 cu ft |
| 12 cu ft | Cargo volume | 13 cu ft |
| 304 g/mi | Tailpipe CO₂ (g/mi) | 349 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| RWD | Drivetrain | 4WD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
BMW 4 Series vs Mercedes-Benz E-Class Hybrid across model years
- BMW 4 Series
- Mercedes-Benz E-Class Hybrid
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Mercedes-Benz E-Class Hybrid has more passenger space (98 vs. 86 cu ft); the Mercedes-Benz E-Class Hybrid has more cargo space (13 vs. 12 cu ft).
Among 34 2021 subcompact cars, the BMW 4 Series ranks 10th and the Mercedes-Benz E-Class Hybrid 17th for lowest fuel cost.
The powertrains differ: the BMW 4 Series is a conventional gas model, while the Mercedes-Benz E-Class Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2021 BMW 4 Series or the 2021 Mercedes-Benz E-Class Hybrid?
Measured by cost to drive, the BMW 4 Series. The BMW 4 Series is rated 29 MPG combined and the Mercedes-Benz E-Class Hybrid 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 BMW 4 Series vs. the Mercedes-Benz E-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,043 for the BMW 4 Series and $2,279 for the Mercedes-Benz E-Class Hybrid.
Which has more cargo space?
The Mercedes-Benz E-Class Hybrid, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
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